Barber s chair



(No Model.) w

E. MBLCHIOR.

BARBERS CHAIR.

UNITED STATES PATENT OFFICE.

EDWARD MELcHIoE, 0E CHICAGO, ILLINOIS.

BARBERS CHAIR.

' SPECIFICATION forming part of Letters Patent No. 380,909, dated .April 10, 1888.

Application tiled September 17, 1887. Serial No. 249,969. (No model.)

.To @ZZ whom it may concern:

Be it known that I, EDWARD MELCHIOE, residing lat Chicago, in the county of Cook and State of Illinois, and a citizen of the United States, have invented a new and useful Improvement in Barbers Chairs, of which the following is a specification, reference being had to the accompanying drawings, in which Figure 1 is a perspective view showing the chair back and arms broken off; Fig. 2, a detail, partly in section, showing the locking and lifting devices; Fig. 3, a side elevation of the locking and lifting devices; Fig. 4., a longitudinal section through the locking and lift ing devices; Fig. 5, a detail showing a modication in the lock.

This invention has for it-s objects to improve the construction and operationof the treadle by which the chair seat and back are raised and lowered and the devices by which the seat and back are locked in any desired position and at the same time utilize the Weight ofthe occupant in the movement of the seat and back; and it consists in the several parts and combination of parts hereinafter described, and pointed out in the claims as new.

In the drawings, A represents the treadle having depending ears a, and having, as shown, its upper face roughened to give a firm hold for the foot.

B is an armhaving a central longitudinal slot,b, and at its outer end having ears b to leave a wider space than the Width of the slot `b for the reception of the returning spring for the locking and releasing lever, and to this arm B is pivotally secured by a pin or pivot, a', the treadle A, the pin or pivot passing through the ears a, which straddle the arm B.

C is the locking and releasing lever, having its forward or acting end, c, formed on a curve and having at its rear end a curved surface, c', on which the treadle A rests, the curved surface permitting an easy movement of the treadle and the lever. This lever C at the point forthe passage of the pin or pivot a has a curved slot, c, to permit the turning of the lever on its pin or pivot d, which pin orpivot passes through the ears b of the arm B and supports the lever.

D is a spring having a loop portion, d, to go underneath the outer end of the lever C, and having ends d' to bear against the end of the arm B, as shown in Figs. 2 and 4, :and this spring is attached to the pin or pivot d by being coiled around the pin or pivot on each side of the lever G, and the loop portion acts to return the lever C after being depressed by the treadle.

Eis a lockingblock located in the slot b of the arm B at the forward end and held in place so as to turn by a pin or pivot, e', and having on its front or engaging face a series of teeth, e.

F is a bar having on the face adjacent to the acting face of the block E a series of teeth, f, and this bar passes through the slot I) between the acting end c of the lever and the acting or toothed face of the block E.

G is a plate secured to the underside of the seat-frame, and having ears g, through which the pin or pivot g passes.

H is a connecting rod or bar, the upper endr of which is forked, and has ears h, through which the pin g passes for pivotally connecting the rod or bar to the plate G, and, as shown, the upperend of the bar F isjpivotally connected by a pin, g', between the ears It of the bar or rod H.

I is an arm having afork, between which is connected the lower end of the rod H by a pin or pivot, fi.

J is a rod running from the legs of the base or support of the seat, and pivotally supported in bearings j on the legs. This bar J has formed therewith, in the construction shown, the arm B and the arm I, and, as shown, the arm I is at one end of the bar, and a corresponding arm, l', is formed on the other end of the bar for connection withthe rod or bar H', which is connected to the plate G on the opposite side of the seat-frame fromthe plate G, so that by the rock of the bar J the arms I I will, through the bars H H', raise and lower the seat andback.

rlhe bars F and H, arm I, and shaft .Tare so arranged and connected as to afford a firm triangular brace for the seat and back of the chair.

L represents the legs or base of the chair, between which is located the bar J.

Mis the seat; N, the back; O, the arms. These parts M, N, and O are of the usual construction of tilting seats and backs.

The parts are assembled by pivoting the blockl in the slot b of the arm B by the pin or pivot e', and pivoting the lever C in the slot b and securing the spring D in place by passing the pin d through the ears b of the arm B and through the lever C and loop of the spring D. The treadle A is pivotally mounted on the arm B by passing the pin or pivot a through the ears a, arm B, and slot c of the lever C. The bar F is passed between the end c ofthe lever G and the face of the block E, and pivoted to the seat-back by the pin g', and the bar II is pivoted at its upper end to the plate G and at its lower end to the arm I of the shaft J, which is mounted in the' bearings j at each end when the device is ready for use.

In use the operator, by pressing down on the treadle A, bringsdown the rear end of the lever C through the contact-face c', raising the acting end c to the position shown in Fig. 4, and releasing the notches f of the' bar F from the notchese ofthe block E, so that a further pressing of the treadle downward will raise the arm I by the rock of the shaft .I from the downward movement of the arm B, causing the bar H to rise and tilt forward the seat and back, and when the block E is released from the bar F, with the lever G in the position shown in Fig. 4, the bar is free to slide downward between the block and lever, allowing the seat and back to tip back from the weight of the occupant. 'Ihe seat and back are locked when the desired position is reached, and held in that position by the operator releasing the treadle A, when the spring D will act and throw up the rear endfof thelever C, throwing down the forward end, c, and forcing the bar F into contact with the block E, producing an engagement between the notches or teeth ef, by which lthe bar is held from further movements until the lever is again released by pressing down on the treadle A.

It will be seen that the end c of the lever G is an eccentric, and that the block E is pivotally mounted, so that when the acting end of the lever is raised, as shown in Fig. 4, it disengages the notches or teeth ef, and when the acting end c of the lever is down its eccentricity will force the bar F forward, turning the block E, as shownin Fig. 3, and producing an engagement between the teeth or notches ef of the block and bar.

Instead of having the pivoted block E, a

stationary block could be used, formed on a v curve, so that when the bar Fis released from the lever C it can swing back far enough to be disengaged from the block E, and when forced forward be brought into engagement with the notches or teeth c of the block, as shown in Fig. 5.

Vhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the armor support B, carrying thetreadle A, pivoted therein, and the lever C, carried by said arm or support and operated by the treadle A, and having the eccentric end c, of the locking-bar F and block E, substantially as described.

2. The combination, with the arm or support B, treadle A, pivoted therein, and lever C, carried thereby and operated by the treadle A, and having the eccentric end c, of the locking-bar F, block E, and a spring, D, for operating the said lever G, substantially as described.

3. The combination of the arm B, treadle A, and lever C, carried by said arm and operated by the treadle A, with the block E, having the serrated face e, and bar F, having the serrated face f, all operating substantially as described.

4. The combination of the treadle A and the arm B, carrying said treadle and having a longitudinal slot, the lever C, located in said slot, operated by the treadle A, and having the eccentric acting end c, the spring D, engaging said arm and lever, the block E, having seri-ations c, and the bar F, having serrations adapted to engage the serrations of the block E, with the bar H, arm I, and rockshaft J, for tilting the chair, substantially as described.

5. The combination of the rocking shaft J, arm I, and block E with the bars H and F, and means, substantially as described, for forcing said bar F into and out of engagement with the block E, all operating so as to form a triangular support, substantially as descri-bed.

EDWARD MELGHIOR.

Witnesses: l

O. W. BeND, HARRY T. JoNns. 

